Mining-machine-chain lubricator



March s; 1927. 1,620,135

H. L. SEEKAMP MINING MACHINE CHAIN LUBRICATCR Filed April 2o, 1925 35 910 cj" 31- 'e 34 6 35 J0 Z3 35 a l?. 4 i E l 15 a l i w .15 ,si 53. 24 l'3 a r" 14 j 1113 33 Z6' 5w `Zg ll- INVENTOR. Herman Leelram/v s BY ATTORNEYS Patented Mar. 8, 1927.

1,620,135 nr orifice.

HERMAN Il. SEEKAMP, Oli` GILLESPIE, ILLINOIS.

MINING-MACHINE-CHAIN LUBRIGATOR.

Application filed April 20, V1925.

. in proper amount to the cutter chain during the operation of themachine.

For the purpose of disclosing my invention I have illustrated oneembodiment thereof in the accompanying drawings in which- F ig. 1 is afragmentary perspective view of so much of a mining chain cutter as isnecessary for the purpose of illustrating the ap lication of myinvention;

*ign 2 is a transverse sectional view of the oiler;

Fig. 3 is a longitudinal sectional view of the same and Fig. a is adetail sectional view of the pump piston.

In the embodiment illustrated my invention is shown as used inconnection with the usual commercial type of chain mining machine havinga relatively stationary frame provided with side bars such as 1 and arelatively movable frame having` chain cutter guides 2 and provided atits rear end with a framework such as 3 for the driv ing mechanism forthe chain cutter 4E operating in the guides. As is usual in this type ofmachine the movable framework is projected forwardly against the breastto be out and moves on the stationary frame 1. After the movable framehas been projected to the limit of its movement it is retracted andafter the material has been cleaned from in front of the cutter therelatively stationary frame is moved forward again and the cuttingoperation again takes place.

In the embodiment illustrated the lubricant container 5 comprises arectangular box having a lateral extension 6 which is shorter than theheight of the box 5. By this construction the container may beconveniently mounted on the movable frame 1 in a position where it takesup the minimum of space and where it can most conveniently deliver thelubricant to the cutter chain. The overhang or shallow portion 6overhangs the top of the side guide 1 while the deeper portion 5 of thecontainer eX- tends downwardly along the inner face of the side rail.This box is providedon its Serial No. 24,369.

rear end with an ear 7 by which it may be bolted to a part of the movingframe 3. rllhe shallow container portion 6 comprises in itself acontainer into which the oil or lubricant is adapted to be pouredthrough an opening 8 in the top 9 of the container which opening isnormally closed by a suitable cap 10, and the container 6 feeds into theportion 5 through an opening 11 in the side wall 129 which opening iscovered by a screen 13 for straining the lubricant before it passes intothe container portion 5.

l Within the container portion 5 I mount a pump comprising a casting 14having a cylinder 15 formed therein, the bottom of `which communicatesthrough a port 17 with the container' and during the delivery stroke ofthe piston this port is closed by a ball check valve 18. The bottomofthe cylinder 15 communicates through ports 19 and 20 with a chamber 21connected by a suitable hose 22 with the delivery pipe 23 mounted on theexterior of the container. Arranged in the bottom of the chamber 21 is aball check valve 2a which checks the vflow of the fluid in the chamberduring the suctionstroke of the piston. Operating in the cylinder 15 isa hollow piston 24 having at its lower end a series ofannular grooves25a. At the center or middle of these grooves the cylinder isprovidedwith a series of radial ports or openings 26 through which the interiorof the cylinder communicates with the exterior of the cylinder. Due

to the fact that the piston is submergedin Y the oil most of the time,the oil will seep in through the openings 26 to the interior of thepiston and during the reciprocating movement ofthe piston this oil owingout through the openings forms an effective oil seal between the pistonand the walls of the cylinder.

The cylinder is reciprocated by an oscili lating shaft 27 having a crankarm 28 connected with the piston 25 by a link 29. A.

coiled spring 30 surrounding the shaft 27 and having one end connectedto the crank arm 28 and the opposite lend stationarily connected to thepartition or wall 12 tends to maintain the piston 25 in its raised orretracted position. The outer end of the shaft 27 is provided with acrank arm 31 adapted, as the movable frame moves forwardly, to engage astop 32 on the stationary frame and rotate the shaft 27 to move thepiston 25 downwardly on its delivery Vamount of "oil deliver)7 required.

stroke, 'this larm 3l being provided "with 'an extension v33 pivoted at34 to the arm in such a manner that when it engages the stop 32 whenmoving in onedirection it `will rotate the shaft 27, but when it engagesthe stop when moving in theoppo'site direction, Will move on its pivot3a Without aecting t-he shaft. By' the provisicnof'an adjustable stop 35the distance the piston 25 moves upwardly under the infiuenceofthecoiled spring 30 ma7 he varicdzto thereby vary the stroke of the .pistonin accordance With the The -delivery pipe 23 terminates in a forkednozzle, one leg 36 of which delivers oil tothe top'of the cutter chainWhilet-he other leg '37 vdirects the'oil to a pointbetiveen the cutterchain and the cutter chain guide.

cla'im as my invention:

'1. A chain oiler for miningmachin'e cutterscomprisina an oil receptaclehaving` an oilsump, an oil pump mounted in said sump and including areciprocating piston, an oscillating shaft. having` a crank armconnected to said reciprocating piston, a spring for retracting said`crank `arm toA move the piston Vonit-s suction stroke and meansexterior of 'the receptacle connected to said shaft, engaged by amovingpart ofthe machine for operating the piston on its forcing stroke.

i2. Pin-oilerforthe cuttingichain'offa mining` machine comprising' anoil receptacle vlia-ving an oil sump, a pump mount-ed in lexterior ofthereceptacle and arranged to deliver oil to the chain. cutter and theconduitI extending ybetween Asaid nozzle and said oil pump.

3. Anoiler for thecutting` chainofa mining machine, comprising an o ilreceptacle having" anl oilsump, a pump mounted Iin said sump comprisingacylinder having an intake openingat its bottom. a check valve forclosing` v'saidopening'in one direction, said cylinder delivering`intoan oil conduit anda check valve in said conduit for closvthe; samein one direction, a delivery nozzle on'the lexteriorof: said casingyconnecting with said conduit and arranged to 'deliver oil to th'ecuttingchain and means on the `exterior rof the casingarranged Vto been--ga'ged by the moving part of a mining` machine for operatingsaid pump.

In Witness whereof, l, fllEnMN L. 'SEE- KAMP, have hereunto set my handlat'Gril- `lespi'e, "Illinois HERMAN L. SEEKAMP.

